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Quick question

  1. Oct 28, 2007 #1
    [SOLVED] Quick question..

    What does the i^ and the j^ symbol mean?
    A particle moves from A to D in the figure while experiencing force [​IMG]. View Figure How much work does the force do if the particle follows path (a) ABD,(b) ACD, and (c) AD?

    I just want to know that before i start the question.
  2. jcsd
  3. Oct 28, 2007 #2


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    Staff Emeritus
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    In this sense, i and j refer to the unit vectors in the x and y directions, respectively. So, the vector 6i+8j is identical to the vector (6,8) using "normal" notation.
  4. Oct 28, 2007 #3
    thanks a lot! The question was a breeze after you explained that. Just had to find the dot product to find the work done.
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